cache

# File activerecord/lib/active_record/query_cache.rb, line 9
      def cache(&block)
        if connected? || !configurations.empty?
          pool = connection_pool
          was_enabled = pool.query_cache_enabled
          begin
            pool.enable_query_cache(&block)
          ensure
            pool.clear_query_cache unless was_enabled
          end
        else
          yield
        end
      end